21000337473

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{353}}^1\times {\mathrm{1237}}^1$

素因数の和:1674

約数の個数: 64

約数和(自身を含む): 31806577152

約数和(自身を除く): 10806239679

約数列:

[1, 3, 17, 23, 41, 51, 69, 123, 353, 391, 697, 943, 1059, 1173, 1237, 2091, 2829, 3711, 6001, 8119, 14473, 16031, 18003, 21029, 24357, 28451, 43419, 48093, 50717, 63087, 85353, 138023, 152151, 246041, 332879, 414069, 436661, 483667, 738123, 862189, 998637, 1166491, 1309983, 1451001, 2586567, 3499473, 5658943, 7423237, 10043203, 16976829, 17903101, 19830347, 22269711, 30129609, 53709303, 59491041, 170734451, 304352717, 411771323, 512203353, 913058151, 1235313969, 7000112491, 21000337473]

約数ペア:

[(1, 21000337473), (3, 7000112491), (17, 1235313969), (23, 913058151), (41, 512203353), (51, 411771323), (69, 304352717), (123, 170734451), (353, 59491041), (391, 53709303), (697, 30129609), (943, 22269711), (1059, 19830347), (1173, 17903101), (1237, 16976829), (2091, 10043203), (2829, 7423237), (3711, 5658943), (6001, 3499473), (8119, 2586567), (14473, 1451001), (16031, 1309983), (18003, 1166491), (21029, 998637), (24357, 862189), (28451, 738123), (43419, 483667), (48093, 436661), (50717, 414069), (63087, 332879), (85353, 246041), (138023, 152151)]